In play it enters as a 3/4 with Flash and Flying, a -1/-1 counter in tow, and you can spend one blue mana and remove that counter to counter any noncreature spell while the opponent draws a card
Lier, Disciple of the Drowned is more of a protective piece
The thrust behind the second point is to make sure that you aren't kicking out a bunch of tribal cards from your deck to fit in cards like these, to the point where you'd be better off not playing tribal anymore
Eventually, Lumra will Mill over every land in your deck
Unlike auras, you cast equipment for their mana cost, and then pay a seperate "equip cost" to put them onto a creature
//// Blitzwing, Adaptive Assailant Color indicator: black Legendary Artifact Vehicle 3/5 Living metal (As long as it's your turn, this Vehicle is also a creature.) At the beginning of combat on your turn, choose flying or indestructible at random